Florida Roofing Trade Knowledge Practice Test

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• Which EVT condition applies when polymer-modified bitumen membranes are installed in hot bitumen?
• Crickets or saddles shall be installed on the ridge side of any chimney greater than how many inches?
• Which organization provides the guideline that the maximum distance between an expansion joint and a downspout is 25 feet?
• What is the coefficient of thermal expansion used to calculate length change for galvanized steel in the given example?
• If a roof leaks, it most likely leaks at which location?
• Metal base flashing is not recommended for use with which system?
• Special Kraft-faced fiberglass batts come in two thicknesses and are what size?
• Which of the following standards should be specified for asphalt felt underlayment used with tile roof systems?
• A GFCI (Ground-Fault Circuit Interrupter) protects whom in a workplace setting?
• In below-grade waterproofing scenarios with compacted earth and a non-reinforced concrete slab, which membrane is not permitted before installation?
• Roof area dividers are raised curbs attached to the structural deck and then properly flashed. What are these features called?
• Which sheet material is the only thermoset material commonly used in constructing single-ply roof membranes in North America?
• Elastomeric traffic coatings should conform to which standard?
• Galvanized coating refers to which type of coating on steel?
• What is the approximate thickness of copper weighing 32 oz with a B&S gauge of 17?
• Which steel is one of the oldest and most common metallic-coated metals?
• Flashing grade adhesives are typically used to bond membrane flashings to vertical substrates. Which option best reflects this statement?
• Which standard governs wind-driven rain infiltration resistance for metal roofing?
• If EPDM roofing is installed at 35 squares per day, how many squares are installed in 4 days?
• Waterstops are typically installed by a:
• Roof tile mortar shall be a premixed unit having product approval and test in compliance with which standard?
• Compared to dark-surfaced roofing, aluminum coating on roofs reduces heat load by what percentage?
• Strapping the plies should be considered when the slope is greater than what decimal value?
• In the described case, how many downspouts are required at the four corners of the building?
• NRCA clay tiles are fired in kilns at temperatures ranging from:
• What is the minimum design slope for liquid-applied roofs according to the Florida Building Code?
• What is the weight density of water in pounds per cubic foot?
• According to NRCA guidance, what gauge or heavier should steel panel roof decks be?
• Which statement correctly matches a roofing-related specification?
• The most popular metal shingles are made from aluminum of what thickness?
• According to the Florida Building Code, which of the following is an example of a Class A roof covering?
• Metal roof shingles shall not be installed on roof slopes below which value?
• Which standard governs the compatibility of SBS polymer-modified base sheets in the guidelines?
• Under the rule of thumb for attic ventilation, one square foot of net free vent opening is allowed for every how many square feet of horizontal attic surface when there is no vapor barrier?
• Ends of roof panels turned up at hips and ridges form which feature?
• If a roof has 450 square feet of horizontal attic surface and no vapor barrier, how many net free vent square feet are required?
• The attic ventilation calculation applies only when there is no vapor barrier. True or False?
• Waterstops are typically installed by which tradesperson?
• The aggregate area limit for penthouses and rooftop structures is expressed as what percentage of the supporting roof area?
• Drip edge metal for tile roof systems is recommended to be fabricated from which material?
• What is a discontinuous roofing system?
• TAS 123 is a standard associated with which roofing component?
• According to OSHA, what is the maximum intended load for a pump jack scaffold between poles?
• Counter flashing receivers in systems should be made of which material and thickness?
• In the built-in gutter example, what gauge is the stainless steel downspout?
• Another name for a prefabricated apex trim tile is?
• All metal roofing shall be tested for wind-driven rain infiltration resistance in compliance with:
• Galvanized steel with a coefficient of thermal expansion of 0.0000067 will increase in length by how much for a 10-foot length with a 100°F temperature rise?
• Which gauge is specified as the minimum for steel deck panels per NRCA guidance?
• Stationary louver blades should be pitched a minimum angle of?
• The aluminum zinc coated steel flashing minimum thickness is specified as 0.0179 inches. Which option correctly identifies this specification?
• After applying the rainfall factor, what is the adjusted flat area?
• NRCA states that when the roof slope is greater than 2:12, plies should be laid parallel to the slope. What is this technique called?
• In the built-in gutter example, what is the width of the gutter bottom?
• Which standard applies to Ketone Ethylene Ester sheets used as a single-ply membrane?
• Which slope is indicated for thermoset single-ply membranes as not less than?
• Asphalt felt underlayment used in tile roof systems should comply with which standard and type?
• The maximum intended load for a pump jack scaffold between poles is set by which organization?
• What is the weight of 0.5 cubic feet of water in pounds?
• Toe boards are required along the edge of platforms when the height exceeds how many feet?
• Polymer-modified bitumen sheets under slope transition metal are typically compliant with which standard?
• What is the thermal value per inch of thickness for polyisocyanurate roof insulation?
• SBS polymer-modified base sheets should not meet or exceed the requirements of which standard?
• The Ethylene Interpolymer sheet thickness range commonly cited is which of the following mils?
• What is the name of the application method when plies are laid parallel to the slope due to steep slope?
• According to Table 1-3 in the example, the plain round scupper size is which dimension in inches?
• Which statement best describes the recommended plies installation when feasible?
• Special Kraft-faced fiberglass batt insulation comes in how many thickness options?
• Who is responsible for requiring the wearing of appropriate personal protective equipment?
• A characteristic of mechanically attached roof membranes is they are subject to:
• When laying square butt strip shingles, which nails are recommended in terms of material, size, and head diameter?
• What is the result of dividing 1,237.5 by 110?
• Slope transition metal is typically laid over polymer modified bitumen sheets which are what compliant?
• What is another name for apex trim tile in roofing terminology?
• In the SMACNA example, what is the initial flat area before adjustments?
• In HVHZ, lead flashing shall not be less than how many inches?
• Ridge caps over standing seam roofs are often installed over which spacing to provide ridge venting?
• When possible, all plies should be installed in which fashion?
• Which flashing is used at the intersection of a roof area and a vertical side wall with end-of-course flashing pieces?
• A mechanically fastened EPDM roofing crew can typically place how many squares per day?
• Flashing grade adhesives are typically used to bond membrane flashings to which substrate?
• What is the name of the flashing used where a roof area intersects a vertical side wall, with individual pieces of metal flashing installed at the end of each shingle course?
• Which of the following is not a standard for SBS polymer-modified bitumen sheets?
• If a roof has 900 square feet of horizontal attic surface and no vapor barrier, how many net free vent square feet are required?
• What is defined as the pressure produced by the weight of liquid water against the foundation walls and slabs of a structure?
• Which standard is applicable to Ketone Ethylene Ester sheets used as single-ply membrane?
• Minimum aluminum thickness for metal flashing according to the Florida Building Code?
• What is the maximum spacing for attachment points on steel deck panels anchored to supporting members?
• What is the R-value of cellular-glass board insulation?
• What is the head size of the nails used for square butt strip shingles?
• Which metal cannot be soldered?
• NRCA clay tiles are fired in kilns at temperatures within which range?
• Thermoset single-ply membrane roofs shall have a design slope of not less than what ratio?
• What is the minimum thickness of aluminum flashing according to the Florida Building Code?
• Per Roofing Construction and Estimating, back nailing is used for what purpose?
• Which of the following may not be used when waterproofing slabs below grade where compacted earth, non-reinforced concrete slab is in place before installation of the membrane?
• What is the nominal weight of 22-gauge stainless steel?
• According to the FBC, packages and containers of foam plastic insulation delivered to the jobsite shall bear the label of an approved agency showing which information?
• Saddle flashings must be flanged how many inches up the wall and chimney and how many inches onto the roof?
• The front rim of a gutter must be ___ below the back edge and it should be below the nailers used to elevate the roof edge
• EPS insulation is not compatible with hot asphalt above what temperature?
• In the flashing of a chimney, the counter flashing should always be wide enough to cover how many inches of base flashing?
• OSHA requires a stairway or ladder at all access points where there is a break in elevation of how many inches or more, if no ramp, runway, sloped embankment, or personnel hoist is provided?
• The alloying of stabilizers, biocides, polymeric plasticizers and antioxidants with PVC compounds produces which product?
• Ridge caps over standing seam roofs are often installed over what spacing to provide ridge venting?
• Which of the following is not a standard for APP polymer-modified bitumen sheets?
• Waterstops in concrete construction are typically installed by which trade?
• On a sloping roof penetration, how far should the flashing flange extend onto the roof?
• What is the raised feature created when turning up roof panel ends at hips and ridges?
• How many plies of coal tar built-membrane are needed to waterproof a wall when the hydrostatic pressure is 49 feet?
• Which unit expresses the nominal weight of sheet metal as given in the data?
• What is the R-value of 3-1/2 inch batt insulation?
• Which statement correctly describes the minimum angle for stationary louver blades?
• Which tile fastener material cannot be used in coastal building zones?
• In the SMACNA calculation example, the required plain round scupper is how many inches?
• The material typically installed beneath slope transition metals is which type of sheet?
• What is the typical length of nails used for square butt strip shingles?
• In clay and concrete tile roof systems using double layer underlayments, end laps should be a minimum of?
• For tile roofing, when should valley metal be extended to the top of the tile?
• What is the weight of 2 square feet of 22-gauge stainless steel?
• Which is not a physical property once liquid-applied roof membranes are cured?
• The nails specified for square butt strip shingles are made of which material?
• Valley flashing for metal roof shingles shall extend at least how many inches from the valley centerline on each side?
• In HVHZ, re-cover applications shall not take place over which existing material?
• The aggregate area of penthouses and other roof top structures shall not exceed:
• According to Walker's, when metal siding is laid on roofs, the end lap should be how many inches?
• According to Walker's, what factor determines the end lap length for metal siding laid on roofs?
• In HVHZ zones, roof tile systems, combining mechanically fastened tile and mortar and/or adhesive shall be required for roofs greater than:
• The two general types of APP polymer bitumen sheets are which of the following?
• 1 perm equals which of the following?
• CPA sheets are produced by alloying PVC with which additives?
• What is the slope of the roof as described in the example, in inches per foot?
• To form flat seams on long panels, the long edges are turned back about how many inches?
• Field lap seams when installing EPDM are typically constructed with what?
• At least how many weights of polymer-modified bitumen base sheets are common?
• Which insulation material has an R-value of 3.44 per inch in the standard cited?
• The lift coefficient for concrete and clay tile is stated as which value?
• The building dimensions given for the SMACNA calculation are 90 feet by 50 feet. Which dimension is longer?
• Which material is not recommended for re-cover on an existing asphalt T-lock roof?
• What is the minimum slope required for a sprayed polyurethane roof?
• Thermoplastic single-ply roof coverings shall comply with which standard?
• One of the principal components in constructing liquid-applied roof membranes is what?
• Which statement best describes the common weights of polymer-modified bitumen base sheets?
• When applied in hot asphalt or cold adhesive, no insulation panel's dimensions shall be greater than?
• What is required to provide resistance against wind uplift in a loose-laid EPDM single-ply system?
• What is the typical thickness range for Ethylene Interpolymer sheets?
• The recommended minimum construction material for a conductor head is:
• Vertical displacement is a characteristic of which roof membrane attachment method?
• When counter flashing is installed into a reglet, what is the recommended minimum galvanized steel gauge for fabrication?
• What is the biggest problem with mineral-surfaced roll roofing?
• Polymer-modified bitumen adhesives are typically produced in how many grades?
• Fishmouths in membrane roofing are caused by what condition?
• The gutter front rim clearance below the back edge is specified as which distance?
• Valley flashing extending 8 inches from the centerline on each side results in a total extension of how many inches across both sides?
• A toe board shall be erected along the edge of platforms when the height is more than how many feet?
• Joints that occur at laps where three single-ply sheets intersect are called?
• Water-based single-ply adhesives should be limited to periods when ambient temperatures remain at a minimum of what temperature and rising during application and the next 48 hours?
• What happens to singly-ply thermoplastic membranes when exposed to heat?
• Polymer-modified bitumen adhered single-ply membrane systems are generally required at intervals of what range?
• Per NRCA, coal tar pitch can be used on slopes up to:
• What is the recommended R-value for a 1 inch thick polyisocyanurate insulation in cooling conditions?
• For roof-mounted equipment in HVHZ, what is the minimum leg height required for equipment with a width of 42 inches?
• Which steel is one of the oldest and most common metallic-coated metals?
• Which statement is true about polymer-modified bitumen adhesives?
• When flashing is of aluminum zinc coated steel, the minimum thickness shall be what value in inches?
• What is the minimum stationary louver blade pitch angle?
• Horizontal grade roof cements are used for embedding metal flashing flanges and forming seals at what?
• When polymer-modified bitumen membrane materials are specified to be installed in hot bitumen, the EVT temperature range recommendation?
• The most popular metal shingles are made from which material and thickness?
• Modified bitumen membrane roofs shall have a design slope of not less than:
• In systems-engineered metal buildings, rigid frames shall have ___ or the number of bolts specified by the manufacturer installed and tightened on both side of the web adjacent to each flange before hoisting equipment is released.
• Before they are installed, polymer-modified bitumen sheets should be:
• Which gauge thickness is recommended when fabricating counter flashing for reglets?
• Expansion joints on a Bermuda type roof should be used at least every how many feet?
• What is the maximum distance between the expansion joint and downspouts for a built-in gutter with a 24-gauge stainless steel downspout and 12' gutter width?
• Which of the following is not a bitumen used for built-up membrane systems (BUR)?
• Skylight frames should overlap the curb a minimum of how many inches to act as a counterflashing or require a separate counterflashing?
• In batten seam roofing, the maximum distance between battens is how many inches?
• Stationary louver blades should be pitched a minimum angle of:
• The lift coefficient for concrete and clay tile shall be: